CN211502822U

CN211502822U - Catalytic combustion furnace for waste gas treatment

Info

Publication number: CN211502822U
Application number: CN201922230058.6U
Authority: CN
Inventors: 戎怡然
Original assignee: Shijiazhuang Hengye Environmental Protection Technology Co ltd
Current assignee: Shijiazhuang Hengye Environmental Protection Technology Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-15
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a catalytic combustion furnace for exhaust-gas treatment, the induction cooker comprises a cooker bod, furnace body inlayer clamp is equipped with the heat preservation, the inside left end of furnace body is equipped with the waste gas import, waste gas import right-hand member welded mounting preheats the chamber, it is equipped with preheating air chamber with furnace body inner wall left end clamp to preheat the chamber, preheating air chamber upper end is located the furnace body lateral wall and has seted up the steam air outlet, it has heating element to preheat the chamber right side to be located furnace body inner wall welded mounting, be equipped with the combustion reaction cabin between heating element and the insulating layer, furnace body right part welded mounting has the heat exchange tube, and this device passes through the blast pipe and arranges into the heat preservation with the steam in the circulating duct in, and the required energy consumption of greatly reduced organic waste gas purification makes waste gas get up through the heat retrieval.

Description

Catalytic combustion furnace for waste gas treatment

Technical Field

The utility model relates to an environmental protection technical field specifically is a catalytic combustion furnace for exhaust-gas treatment.

Background

The combustion furnace and electric arc combustion furnace, also called carbon-sulfur combustion furnace, are called electric arc furnace for short, and utilize high-voltage and high-frequency oscillation circuit to form instantaneous large current to ignite sample, so that the sample can be quickly combusted under the condition of rich oxygen to quickly remove organic matter in waste gas.

Most catalytic combustion device adopt plate heat exchanger, because plate heat exchanger structural design itself, if make heat transfer area increase, corresponding volume increase is many, and current catalytic combustion furnace's heat exchanger device is mostly the heat absorption back that the gas that will treat the combustion gas contains, discharges the gas in the heat exchanger simultaneously, causes the waste in a large amount of energy, and we propose a catalytic combustion furnace for exhaust-gas treatment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a catalytic combustion furnace for exhaust-gas treatment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a catalytic combustion furnace for waste gas treatment comprises a furnace body, wherein a heat preservation layer is clamped in the inner layer of the furnace body, a waste gas inlet is formed in the left end inside the furnace body, a preheating cavity is welded and installed at the right end of the waste gas inlet and is a fan-shaped device, a preheating air cavity is clamped between the preheating cavity and the left end of the inner wall of the furnace body, the upper end of the preheating air cavity is positioned on the side wall of the furnace body and is provided with a hot gas outlet, the lower end of the preheating air cavity is positioned on the side wall of the furnace body and is provided with a hot gas inlet, the right side of the preheating cavity is positioned on the inner wall of the furnace body and is welded and installed with a heating element, the right side of the heating element is welded and installed on the inner wall of the furnace body and is provided with a, the heat exchange tube is internally provided with a circulating air duct, the upper end of the heat exchange tube penetrates through the side wall of the furnace body and is provided with an air outlet, the lower end of the heat exchange tube penetrates through the side wall of the furnace body and is provided with an air inlet, the outer side of the left wall of the air inlet is positioned on the surface of the heat preservation layer and is provided with a heat preservation hot air outlet, a heat exchange port is formed in.

Preferably, the heat exchange tube is a U-shaped tube.

Preferably, the preheated air cavity and the combustion reaction cabin are not communicated.

Preferably, the inlet gas in the waste gas inlet is a mixed gas of waste gas and air.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages that the preheating air cavity is arranged in the combustion furnace body, so that the external waste gas can be rapidly heated; the heat exchange tube structure is U type structure, and heat exchange efficiency has obvious promotion with plate heat exchanger comparison, and the basic heat transfer element of heat exchanger is U type heat exchange tube, absorbs the heat that waste gas contains fast through the circulation wind channel, and the steam in with the circulation wind channel is discharged into in the heat preservation through the blast pipe, and the required energy consumption of greatly reduced organic waste gas purification makes the waste gas get up the retrieval and utilization as far as through the heat of catalyst combustion oxidation release, reduces the use amount of electric energy among the waste gas combustion process.

Drawings

FIG. 1 is a sectional view of the present invention;

fig. 2 is a schematic view of the heat exchange tube of the present invention.

In the figure: the device comprises a furnace body 1, a preheating air cavity 2, a heating element 3, a heat insulation cabin 4, a combustion reaction cabin 5, a heat insulation hot air outlet 51, a circulating air duct 6, a waste gas outlet 7, a heat exchange pipe 8, a heat exchange port 81, an exhaust port 9, an air inlet 91, an exhaust pipe 92, a heat insulation layer 10, a heat insulation layer 11, a preheating cavity 12, a hot air outlet 13, a hot air inlet 131 and a waste gas inlet 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a catalytic combustion furnace for waste gas treatment comprises a furnace body 1, wherein a heat insulation layer 11 is clamped in the inner layer of the furnace body 1, the temperature of the combustion furnace is kept through the heat insulation layer 11, a waste gas inlet 14 is arranged at the left end inside the furnace body 1, a preheating cavity 12 is welded at the right end of the waste gas inlet 14, waste gas passing through the waste gas inlet 14 is heated through the preheating cavity 12, the preheating cavity 12 is a fan-shaped device, a preheating air cavity 2 is clamped between the preheating cavity 12 and the left end of the inner wall of the furnace body 1, a hot gas outlet 13 is formed in the upper end of the preheating air cavity 2 and positioned on the side wall of the furnace body 1, preheating gas in the preheating air cavity 2 is discharged through the hot gas outlet 13, a hot gas inlet 131 is formed in the lower end of the preheating air cavity 2 and positioned on the side wall of the furnace body 1, a heating element 3 is welded and arranged on the, the right side of the heating element 3 is positioned on the inner wall of the furnace body 1 and welded with a heat insulating layer 10, the heat insulating layer 10 is of a hollow structure, a heat insulating cabin 4 is clamped in the heat insulating layer 10, a combustion reaction cabin 5 is arranged between the heating element 3 and the heat insulating layer 10, a mixture of waste gas and air is completely combusted through the combustion reaction cabin 5, organic matters in the waste gas are combusted, a heat exchange pipe 8 is welded on the right side of the furnace body 1 and replaces heat carried by the combusted gas through the heat exchange pipe 8, the heat exchange pipe 8 is of a hollow structure, a circulating air duct 6 is arranged in the heat exchange pipe 8, the upper end of the heat exchange pipe 8 penetrates through the side wall of the furnace body 1 and is provided with an exhaust port 9, the exhaust port 9 is inserted and provided with an exhaust pipe 92, the exhaust pipe 92 is inserted into a heat insulating layer 11 and is insulated, the air inlet 91 left wall outside is located 11 surfaces of heat preservation and is equipped with heat preservation steam outlet 51, heat transfer mouth 81 has been seted up in the heat exchange tube 8, waste gas outlet 7 has been seted up to 1 right-hand member of furnace body, heat exchange tube 8 is U type pipeline, makes the heat exchange tube 8 and the area of contact increase of waiting to change the hot gas through U type pipeline, and efficiency improves by a wide margin, preheating air chamber 2 and furnace body 1 in do not have the UNICOM between other each cavitys, prevent that waste gas from revealing through preheating the chamber 12, the entering gas is waste gas and air mixing gas in the waste gas import 14, guarantees to contain sufficient oxygen in the waste gas, makes waste gas can carry out complete combustion in combustion reaction cabin 5.

The working principle is as follows: this catalytic combustion furnace for exhaust-gas treatment passes through in the mixed gas with the air gets into the device through exhaust inlet 14, preheat 2 hot gas in the chamber through preheating the air chamber in the chamber 12 and carry out primary heating, mixed gas passes heating element 3 behind preheating the chamber 12 and carries out the rapid improvement with mixed gas's temperature, mixed gas passes after the heating and gets into in the combustion reaction cabin 5 behind the insulating layer 10 centre bore, mixed gas is located combustion reaction cabin 5 behind the high temperature heating, carry out the organic matter burning in the mixed gas, get rid of the organic matter in the mixed gas through the burning, later absorb the heat that the gas after will burning contained through heat exchange tube 8, prevent a large amount of external heat dissipations of heat.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A catalytic combustion furnace for exhaust gas treatment, comprising a furnace body (1), characterized in that: the furnace body (1) inner layer is clamped with a heat preservation layer (11), the left end in the furnace body (1) is provided with a waste gas inlet (14), the right end of the waste gas inlet (14) is welded with a preheating cavity (12), the preheating cavity (12) is a fan-shaped device, the preheating cavity (12) and the left end of the inner wall of the furnace body (1) are clamped with a preheating air cavity (2), the upper end of the preheating air cavity (2) is positioned on the side wall of the furnace body (1) and is provided with a hot gas outlet (13), the lower end of the preheating air cavity (2) is positioned on the side wall of the furnace body (1) and is provided with a hot gas inlet (131), the right side of the preheating cavity (12) is positioned on the inner wall of the furnace body (1) and is welded with a heating element (3), the right side of the heating element (3) is positioned on the inner wall of the furnace body (1) and is provided with a heat insulation layer, furnace body (1) right part welded mounting has heat exchange tube (8), has seted up circulation wind channel (6) in heat exchange tube (8) the upper end of heat exchange tube (8) runs through furnace body (1) lateral wall and has seted up gas vent (9), gas vent (9) are inserted and are established and install blast pipe (92), heat exchange tube (8) lower extreme runs through furnace body (1) lateral wall and has seted up air inlet (91), air inlet (91) left wall outside is located heat preservation (11) surface and is equipped with heat preservation steam outlet (51), heat transfer opening (81) have been seted up in heat exchange tube (8), waste gas outlet (7) have been seted up to furnace body (1) right-hand member.

2. The catalytic combustion furnace for exhaust gas treatment according to claim 1, wherein: the heat exchange tube (8) is a U-shaped tube.

3. The catalytic combustion furnace for exhaust gas treatment according to claim 1, wherein: the preheating air cavity (2) is not communicated with the preheating air cavity (2) and the combustion reaction cabin (5).

4. The catalytic combustion furnace for exhaust gas treatment according to claim 1, wherein: the heat insulation layer (10) is of a hollow structure, and the heat exchange tube (8) is of a hollow structure.